Matjiesrivier Nature Reserve
- Annual mean
- 16.2 °C
- Warmest month
- January
- Wettest month
- June
Twelve-month climatology profile based on representative point data for the Western Cape reserve
Detailed climate profile for Groot Winterhoek Wilderness Area, capturing long-term monthly averages for temperature, precipitation, humidity, wind, and daylight. These records utilize NASA POWER measurements from a single representative point at 904.39 meters elevation, spanning the 1991 to 2020 period. Measurements reflect historical climate patterns rather than daily forecasts or current weather observations.

Monthly average temperature ranges and precipitation rates from 1991 to 2020 climatology records.
Analyze long term temperature bounds, daily precipitation rates, humidity, wind, and calculated daylight across the calendar year
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 21.5 °C8° to 37.9° | 0.6 mm/day | 50.7% | 4.5 m/s | 13.9 hours |
| February | 21.6 °C8.8° to 37.6° | 0.5 mm/day | 50.4% | 4.3 m/s | 13.2 hours |
| March | 19.6 °C7.1° to 35.4° | 0.8 mm/day | 53.2% | 3.9 m/s | 12.2 hours |
| April | 15.6 °C4° to 31.8° | 1.4 mm/day | 59.2% | 3.7 m/s | 11.2 hours |
| May | 12 °C1.7° to 26.8° | 2.2 mm/day | 67.1% | 3.5 m/s | 10.3 hours |
| June | 8.3 °C-0.8° to 21.6° | 4.1 mm/day | 76.4% | 3.8 m/s | 9.9 hours |
| July | 7.5 °C-1.5° to 19.9° | 3.5 mm/day | 78.1% | 3.7 m/s | 10.1 hours |
| August | 8.2 °C-1° to 22.3° | 3.1 mm/day | 78.6% | 3.7 m/s | 10.8 hours |
| September | 10.6 °C0.3° to 26.4° | 1.7 mm/day | 75.2% | 3.8 m/s | 11.8 hours |
| October | 13.8 °C1.8° to 30.1° | 1.3 mm/day | 68.1% | 4 m/s | 12.9 hours |
| November | 16.2 °C4° to 33.1° | 1.2 mm/day | 61.2% | 4.3 m/s | 13.7 hours |
| December | 19.4 °C6.8° to 35° | 0.8 mm/day | 55.1% | 4.4 m/s | 14.2 hours |
Comparing long term averages for temperature, precipitation, humidity, wind, and daylight duration.
Interactive climate map
Visit the MoriAtlas climate map to compare long-term monthly temperature and precipitation metrics across national parks. This visual interface helps you understand seasonal variations at specific protected area coordinates to deepen your knowledge of global park geography and environmental characteristics.
Trace monthly temperature and precipitation rhythms across distinct regional geographic settings



Deepen your knowledge of the Groot Winterhoek Wilderness Area mountain range. Explore how this protected wildlife reserve integrates into the broader geography of the Western Cape through mapped terrain data and ecological summaries provided by MoriAtlas.